This is an odd problem to have.

I use 'tap to click' usually. This continues to work as it always had. I went to install Mountain Lion, fresh install. This meant I needed to be in the Recovery Mode.

In Recovery, I was unable to select anything using the trackpad at all, although I was able to move the mouse cursor around. Notably, the keyboard shortcuts did not seem to be available.

When I went into my trackpad settings and de-selected 'tap to click' I was unable to click on the trackpad! I had to use the keyboard to reselect it. It is working right now.

Now, I'm certain that this used to work. How can I reset my trackpad to default settings?

EDIT: I also noticed that I can't drag windows anymore. I used to do this by ... well by dragging, holding the trackpad down and moving it. However I just changed to using the 3 finger drag, this works. This started on Lion, and has followed me to Mountain Lion.

EDIT: I'm running a 2009 13" macbook pro unibody. Apparently the keyboard shortcuts, require <Fn>+<CTRL>+<F2> to get to the Apple Menu, for example. Still, many do not work.

  • You're not alone. Same problem here after an upgrade to Mountain Lion. – Fernando Aug 7 '12 at 2:28
  • 2008 later 15" MBP, same problem from Lion. Without 'tap to click', cannot click the trackpad, and move the window. – kukoo Aug 7 '12 at 3:53

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